The Multiquip 48405 Seat Switch Harness is a genuine OEM component designed for MD105 and MD80 hydraulic ride-on power trowels. This is a direct OEM replacement sourced through Multiquip's authorized parts program, ensuring the wiring configuration, connector types, and circuit routing match the original harness installed at the factory. Correct fitment on the MD105 and MD80 means the seat switch circuit operates exactly as engineered, keeping the operator presence system fully functional.
Key Features
- OEM-Matched Wiring Specification — Correct conductor gauge, insulation rating, and connector terminals for the seat switch circuit on MD-series trowels, eliminating guesswork on compatibility.
- Direct Plug-In Replacement — Harness connectors are keyed to the original harness routing on the MD105 and MD80, allowing straightforward installation without splicing or rewiring.
- MD-Series Fitment Confirmed — Verified for MD105 and MD80 hydraulic ride-on power trowels.
- Operator Presence System Integrity — A damaged or failed seat switch harness can disable or bypass the operator detection circuit; replacing it with the correct OEM harness restores proper system function.
- Electrical Safety Compliance — The seat switch circuit is a critical safety interlock on ride-on trowels; using the genuine OEM harness ensures the circuit performs to the original design intent and maintains compliance with operator safety requirements.
The seat switch harness connects the operator presence switch — mounted beneath or within the seat assembly — to the trowel's control circuit. When the operator is seated, the switch closes the circuit and allows the machine to operate; if the operator leaves the seat, the circuit opens and the machine responds accordingly. A worn, broken, or corroded harness can cause intermittent faults, prevent the trowel from starting, or — more critically — compromise the operator presence safety interlock entirely, making prompt replacement essential.
For fitment questions or to confirm this part is correct for your machine's serial number, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 48405 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Seat Switch Harness |
Compatibility & Fitment
| Name | Model |
|---|---|
| Hydraulic Ride-On Power Trowels | MD105 |
| Hydraulic Ride-On Power Trowels | MD80 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
